modelDHCSupplyHeaterCoolerStorage
Supply node model with ideal heater and cooler and storage tank without heat losses for heat and cold supply of bidirectional networks
Information
This model represents the supply node of a bidirectional network with
ideal heater and ideal cooler and storage tank. The tank is
integrated into the network directly. The operation mode of the
supply systems depends on the flow direction. In the case that port_b
is the outlet, heating operation takes place. In the case that port_a
is the outlet, cooling operation takes place.
Parameters
| Type | Name | Default | Description |
|---|
| Modelica.Units.SI.Pressure | dp_nominal | 30000 | Nominal pressure drop |
| Modelica.Units.SI.MassFlowRate | m_flow_nominal | m_flow_nominal | Nominal mass flow rate |
| Modelica.Units.SI.Volume | V_Tank | | Volume of thermal storage tank |
Components
| Type | Name | Default | Description |
|---|
| Modelica.Fluid.Interfaces.FluidPort_a | port_a | | Fluid connector for connecting the ideal plant with storage to the cold line of the network |
| Modelica.Fluid.Interfaces.FluidPort_b | port_b | | Fluid connector for connecting the ideal plant with storage to the warm line of the network |
| AixLib.Fluid.HeatExchangers.PrescribedOutlet | coo | | Ideal cooler (only in operation if mass flow direction is from port_b to port_a) |
| AixLib.Fluid.HeatExchangers.PrescribedOutlet | hea | | Ideal heater (only in operation if mass flow direction is from port_a to port_b) |
| AixLib.Fluid.Sensors.TemperatureTwoPort | senT_cooOut | | Outlet temperature of ideal cooler if mass flow direcetion is from port_b to port_a |
| Modelica.Blocks.Interfaces.RealInput | T_cooSet | | Maximum supply temperature of the cold line of the bidirectional low-temperature network |
| Modelica.Blocks.Interfaces.RealInput | T_heaSet | | Minimum supply temperature of the hot line of the bidirectional low-temperature network |
| AixLib.Fluid.Storage.Stratified | tan | | |
| AixLib.Fluid.Sensors.TemperatureTwoPort | senT_heaOut | | Outlet temperature of ideal heater if mass flow direcetion is from port_a to port_b |
| AixLib.Fluid.Sensors.TemperatureTwoPort | senT_stoHea | | |
| AixLib.Fluid.Sensors.TemperatureTwoPort | senT_stoCoo | | |
| Modelica.Blocks.Math.Min | min | | Set temperature of ideal heater |
| Modelica.Blocks.Math.Max | max | | Set temperature of ideal cooler |
| Sources.Boundary_pT | bou | | |
Contents
| Name | Description |
|---|
| Medium | Medium model for water |
Revisions
-
October 08, 2020 ,by Tobias Blacha:
Moved to development
-
August 09, 2018 ,by Tobias Blacha:
Implemented